Oscillating engine



(No Model.) 4 Sheets-Sheet 1.

Y. LUSSE.

OSGILLATING ENGINE.

No. 350,683; Patented Oct. 12, 1886.

6 5 INVENTOR v ATTORNEY WITNESSES:

(No Model.) 4 Sheets-Sheet 2.

Y. LUSSE'.

OSGILLATING ENGINE.

No. 350,638. Patented 0012.12, 1886.

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(No Model.) 4 SheetsSheet 3.

Y. LUSSE.

OSOILLATING ENGINE.

No. 350,633. Patented Oct. 12, 1886.

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WITNESSES: I I lNVfi/VTOR m M W 3 ATTORNEY N. PETERS. Filolo'Lilhaghphu. Washington, D.C

UNITED STATES PATENT OFFICE.

YOST 'LUSSE, OF PHILADELPHIA, PENNSYLVANIA.

OSCILLATING ENGINE.

SPECIFICATION forming part of Letters Patent No. 350,633, dated Qetooer 12, 1886.

Application filed April 1, 1886. Serial No. 197,384. (No model.)

To all whom it may concern.- 1

Be it known that I, YOST LUSSE, a citizen of the Republic of Switzerland, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, haveinvented certain new and useful Improvements in Oscillating Engines, of which the following is a specification, reference being had therein to the ac companying drawings, wherein- Fignre1 is a side elevation of an engine having an oscillating cylinder embodying my improvements. Fig. 2 is a like view showing the cylinder and the frame to which its trunnions are attached raised from. the steam-chest for access thereto for inspection or repairs. Fig. 3 is an elevation similar to Fig. 1,sl1owing section on line 1 1, Fig. 4. Fig. .4 is a plan. Fig. 5 is a section on the line 2 2, Fig. 4. Fig. 6 is a plan of the steam-chest and steam-supply pipes therefor. Fig. 7 is a view similar to Fig. 3,showinga modified arrangement of exhaustports, and Fig. 8 is aplan of steam-chest to conform thereto.

My invention has relation to that form of engine having a cylinder which oscillates on trunnions,andis provided with an outside projection containing the ports, and formed with a convex curved side which is struck from the center of the trunnions and oscillates with the cylinder and rests upon a stationary concave support forming a steam-chest; and it has for its object the construction of parts whereby easy access is afforded to the cylinder and steam-chest for inspection, repairs, or other purposes, provision made at the end of the stroke of the piston for beginning the reverse oscillation of the cylinder by steanrpressure independent of that in the cylinder, so as to move the crank off of its dead-center before or simultaneously with the first movement of the return-stroke of the piston in the cylinder, and provision made for reversing the direction of travel of the cylinder-piston to effect a reversal of rotation of the driving-shaft.

My invention accordingly consists of the combination,construction,and arrangement of parts as hereinafter described and claimed, having reference particular] y,first, to a pivoted frame for supporting the cylinder-trunnions; second, to a series of portsindependent of the cylinder-ports for receiving steam-pressure in advance or simultaneous with the admission -of steam to the cylinder-ports; and, third, to

the con figu ration of a convex curve struck from the center of the trunnions,which curved side rests upon a concave upper surface of a sta tionary support or steam-chest, D, attached to 6 5 or forming part of the base plate B. At one end of the latter is a pedestal, b, for the driving-shaft 0, having a crank connection,c,with the piston-rod a". At the other end ofplate B is a standard or block, b, to which is suitably 7O pivoted a frame, E, composed of parallel side pieces, 6, in which the cylinder-trunnions (t have their bearings, as shown. These side pieces, e, are at their forward ends, 6, bent or turned downwardly and united by cross-bar e seating between cleats e on plate B,to give firmness and rigidity to the frame E. The cross-bar e" of the frame may be secured to plate B by screws, as shown; but this is not essential, as the weight of the cylinder keeps 8:) the frame firmly in position.

By pivoting the frame E to the plate-standard b the cylinder and frame can readily be raised, as shown in Fig. 2, when the crank is disconnected from the piston-rod for inspec- 8 tion, repairs, or other purposes, either for the cylinder or the steam-chest D. The latter has bolted to it upon its under side a cap, (I, which has two steam-pipes, (1 d one on each side, and each pipe has avalve or cut-off, (2 Chest c D is also preferably provided with two sets of steam and exhaust ports, d d d and gt (1 d, respectively, arranged parallel to each other, with the steamports d d between. the respective exhaust-ports in series therewith, as more 5 plainly shown in Fig. 6. The steam-port 62* connects with the steam-pipe (Z and steam? port d with steam-pipe d, and the exhaustports of both said sets of ports connect with common outlets, d d".

In the cylinder-block a are two sets of ports, a a and a a The ports a* a take and exhaust steam from the chest-ports d* (P, and the ports a a from the chest-ports d d; but the ICC ends of the cylinder-ports (6 a which travel over the chest-ports (1 (Z are arranged to take and exhaust steam reversely to that of the cylinder-ports a a", so that the direction of travel of the piston may be reversed whenever desired to effect a reversal in the direction of rotation of the driving-shaft. This reversal is effected by closing and opening one or the other of the valves in pipes d and d to admit steam to only one or the other of the chest steam-ports d d at a time.

In cylinder-block a, and near each side of the same, are double or connecting or bent channels or ports F, one limb, f, of each of which terminates near the outer end of the curve bottom of said block, as shown more plainly in Fig. 3, and the other limb, f, of each of said ports terminates near the center of said block, and has a division, f between them. Thelimbs farc made smaller than the limbs f, or the limbsf are made tapering to reduce their area in cross-section. below that of the limbsf. In line with these ports F in the chest I) are eXhaust-portsf for the limbs f, which exhaust-ports connect with the exhaust ports d d, (see Fig. 6,) and also steam ports for the limbs f, which steam-ports are in connection with the steam-pipes cl al The ports F and the chest-ports f f are so arranged relatively to the ports for the cylinder that the ports F take and discharge steam slightly in advance or simultaneously with the admission of steam to the cylinder, or at the end of the stroke of the piston, so that a'pressure of steam is provided in the limb f of one of the ports F upon that end of the cylinder opposite to that at which it is taking steam, this pressure being produced by the unequal area of the limbs f and f of ports F, and acts COillCltlGlltl y with the movement of the piston to assist in the initial oscillation of the cylindcr at said end to throw or move the crank over its dead-center, the direction of the arrows 1. in Fig. 3 showing the path of the steam to and from the cylinder, that of arrows 2 the path through one of the ports F, that of arrow 3 direction of oscillation of cylinder, and that of arrow 4 the direction of rotation of crank and driving-axle.

When no reversal of the movement of the piston and. driving-shaft is desired, the )orts a. a and chest-ports (1 (Z are dispensed with, in which case the ports F and their chest-ports f f on the adjacent side of the cylinder are also dispensed with, their duplication. in the drawings being shown to correspond with the double set of steam-chest and cylinder-ports.

Instead of exhausting the steam from the bent ports F as soon as or very soon after being admitted thereto, as provided for in the double exhaust-ports f (shown in Figs. 3 and 6,) the steam may be retained in ports F until the cylinder makes a full oscillation, in which case the pressure of the steam in ports F is utilized to coact with the steam-pressure in the cylinder for motive power. To accomplish this result but one exhaust-port, f in ste'anr chest I) is provided for each pair of ports F, as shownin Figs. 7 and 8, which is located between. the limbs f f of ports F when in position shown in Fig. 8, and they alternately exhaust into portf to keep steam in one or the other of ports F of a pair while the cylinder oscillates.

Steam, water, or other motive power may be employed for the engine.

\Vhat I claim is 1. In 00 mbination with an engine base-plate, a stationary steam-chest on the base-plate and having a curved upper side, a cylinder having side truunions, and a lower block or projection having a curved under side fitting upon the curved side of the stationary steam-chest, and a frame having bearings'for the cylindertrunnions, which frame is pivoted at one end to the base-plate and has its other end resting upon the base-plate, substantially as set forth.

2. The combination of an engine base-plate, a curved frame, E, pivoted at one end to the base-plate and having its other end resting upon and bolted to the base-plate, an oscillat ing cylinder having trunnions supported in frame E, piston-rod a, crank c, and drivingshatt G and steam-chest D on said base-plate, substantially as set forth.

3. Au oscillating cylinder having a pistonand-crank connection with a driving-shaft, a steamchest with curved upper side fitting a curved side on said cylinder, two separate sets of steam and exhaust ports in said chest, and two separatescts of ports in the cylinder adapted to reversely take and exhaust steam, as and for the purpose set forth.

4. The combination ofstationary steanrchest D, having two sets of separate steam and exhaust ports, separate steam-pi ms having a valve or cutoff for each set of said ports, and an oscillating cylinder having two sets of ports adapted to take and exhaust steam revcrsel y, as and for the purposeset forth.

5. An oscillating engine having steam chest and ports, combined with separate ports F, having varying area in cross-section throughout a portion of their length, substantially as set forth.

6. In an oscillating cylinder, the ports F, composed of two limbs of diftln'ent area in cross-section, and arranged for operation substantially as shown and described.

In testimony whereof I af'fix my signature in presence of two witnesses.

YOST LUSSE.

' Witnesses:

S. J'. VAN S'IAVOREN, JOHN HnIsER.

IIS 

